Wanna hear Pennywise sing? (seriously)
https://www.youtube.com/watch?v=8klGe_Y_-E8
At the 15:36 mark, Tim Curry sings a song using his cloggy Pennywise voice for a clown like jack-in-the-box character, and it's pretty cool. This is basically what Pennywise would've been like in a kid-friendly animated version Lol. He talks this way throughout the whole thing.